Our practice

Kathleen Fleming OD

A native of southern Ohio, Dr. Fleming came to the Cleveland area upon graduation from The Ohio State University College of Optometry in 1986. After a year of practicing in downtown Cleveland, Dr. Fleming started her own business in Avon Lake.

In 1989 Dr. Fleming joined the Berris Optical family and in 2004 she sold her Avon Lake office to practice full time in Rocky River.

Dr. Fleming enjoys spending her free time at home with her husband, Jim, their four horses, two dogs and assorted cats. When not riding the four legged horses they enjoy their iron horses - Harley Davidson style!

Mary Gerhart OD

Dr. Gerhart was a native of Avon, Ohio alumna of Magnificat High School in Rocky River, Ohio and University of Dayton. She graduated from the University of California at Berkeley School of Optometry in 1983. Dr. Gerhart practiced in San Francisco, CA at the University of California at San Francisco medical campus for 10 years and returned to Ohio in 1994.

Dr. Gerhart is a Vision Optometric Consultant at the Cleveland Sight Center-Society for the Blind for the last 17 years. She is the Assistant Clinical Instructor at Case Western Reserve University School of Medicine, Department of Ophthalmology. Dr. Gerhart rejoined Dr. Fleming and the Berris Optical team in 2009 after 15 years of practice in Berea, Ohio.​Dr. Gerhart enjoys traveling, cultural events and dog training.

Peggy Zillmann, Optician

Margaret (Peggy) Zillmann heads the team of opticians at Berris Optical. She has 35 years of contact lens and spectacle dispensing experience and is the buyer and head fashion stylist for Berris Optical.​Peggy is a past president of the Cleveland Society of Ophthalmic Opticians and has been a trustee of the Optician's Association of Ohio for twenty years. She is an honored fellow member of the Optician's Association of America, a recipient of the Bud Thoma Optician of the Year Award, and a member of Vision Monday's 50 Most Influential Women in Opticianry.

When not working Peggy enjoys travel to warm sandy locations, reading, and relaxing.

Njegos Golubovic, Optician

Njegos Golubovic, also known as NJ, is licensed as a contact lens and spectacle optician. NJ is a graduate of the Tri-C Ophthalmic Dispensing Program and holds an Associate Degree of Applied Science in Optical Technology.

​He is American Board of Opticianry certified and is a member of the Optician's Association of Ohio.

NJ is also bilingual, speaking Serbo-Croatian fluently.

Craig Witherspoon, Optician

Craig Witherspoon, manager of Berris Optical, brings 37 years of spectacle and contact lens experience to the practice.

He has served as past president of the Cleveland Society of Ophthalmic Opticians and past president of the Optician's Association of Ohio. A two time recipient of the Distinguished Service in Opticianry Award, Craig is also a winner of the prestigious Bud Thoma Optician of the year.

Craig holds a dual license in spectacle and contact lenses and is an Honored Fellow Member in the Optician's Association of America.

A past president and 28 year member of the Avon Lions Club, Craig also enjoys fishing and motorcycle travel with his wife, Carolyn.